Status and phase
Conditions
Treatments
About
Primary objective of the study is to establish a 3-way PK similarity bridge between MabionCD20 (candidate biosimilar to rituximab), MabThera® (EU-sourced rituximab) and Rituxan® (US-sourced rituximab) following the administration of these drugs to patients with moderate-to-severe rheumatoid arthritis. Main secondary objective is to confirm therapeutic similarity between MabionCD20 and the reference rituximab.
Full description
Patients with active moderate-to-severe rheumatoid arthritis diagnosed according to the 2010 ACR criteria will be randomized to receive a blinded treatment course of either MabionCD20, EU-Rituximab (MabThera®) or US-Rituximab (Rituxan®) on the top of a stable methotrexate therapy. Two infusions of investigational drug at a dose of 1000 mg will be given at Day 1 and 15. Patients will be then followed for a minimum of 24 weeks to establish PK and therapeutic similarity and to compare PD, safety and immunogenicity parameters between the three rituximab products (Main Phase). Patients may receive a second course of investigational therapy at Week 24, provided that they meet re-treatment eligibility criteria specified in the study protocol. Subjects in MabionCD20 and EU-Rituximab groups will be continued on their assigned treatments, while all subjects in US-Rituximab group will be switched to MabionCD20. All subjects (re-treated and not re-treated) will continue the follow-up until Week 48 to collect long-term safety, immunogenicity and efficacy data.
Sex
Ages
Volunteers
Inclusion criteria
Male or female, age 18 - 80 years
Body Surface Area (BSA) between 1.5 and 2.2 m2
Confirmed diagnosis of RA diagnosed according to the revised (2010) ACR/EULAR classification criteria, with a disease duration minimum of 6 months prior to the Screening Visit
Currently moderate to severe RA despite ongoing administration of an adequate MTX regimen. Moderate to severe disease is defined here as the presence of the following two criteria:
No history of treatment with TNF-α inhibitor (innovative or biosimilar, authorized or investigational) at any time before the screening i.e. TNF-α inhibitor naive population.
Receiving MTX treatment at a dosage of 7.5-25 mg/week for at least 12 weeks prior to screening, with the last 4 weeks at a stable dose, and willing to remain at this dose for the entire study duration
Male or WOCBP must consent to use highly effective contraception, from the Screening Visit, during the intervention period, and for at least 12 months after the last dose of study intervention
Female participants must not be pregnant or lactating (negative baseline serum test)
Exclusion criteria
History of or current inflammatory joint disease other than RA
History of or current systemic autoimmune disorder
ACR functional class IV disease
History of psychiatric disorder that would interfere with normal participation in the study
Evidence of HBV, HCV, HIV infection
Evidence of laboratory-confirmed or clinically suspected SARS-CoV-2 infection within 14 days before the study drug administration and a documented positive RT-PCR test within 72 hours before the first infusion or positive antigen test within 24 hours before the first infusion.
Serious and/or uncontrolled coexisting diseases which are recognized as major contraindications to the administration of rituximab, methotrexate or any of the pre-medication components or as important risk factors for the development of severe or life-threatening SARS-CoV-2 infection or other factors, which in the Investigator's opinion, would preclude patients participation. This category includes severe pulmonary, cardiovascular, neurologic, renal and hepatic diseases, severe and inadequately controlled type 1 or 2 diabetes.
Recent history or current evidence of bacterial, viral or fungal infection (excluding infections of nailbeds)
History of or current active tuberculosis, with typical symptoms of M. tuberculosis infection confirmed by positive results of TB screening test or documented diagnosis prior to screening
Latent tuberculosis, as documented in subject's medical records or shown by a positive or indeterminate QuantiFERON test performed at screening, in absence of typical symptoms of tuberculosis. However, a patient with latent tuberculosis may become eligible for the study if he/she meets the following criteria:
History of cancer (solid tumors, hematologic malignancies and other) within 5 years of the screening
History of significant cytopenia or other disorder of the hematopoietic system
Primary or secondary immunodeficiency
Any other condition that is listed as a contraindication to receive rituximab or methotrexate therapy
Recent use of biologic DMARDs or non-biologic DMARDs other than MTX within the washout periods specified in the study protocol
Treatment with any of the authorized or investigational TNF-α inhibitors at any time before the screening (regardless if innovative or biosimilar).
History of prior treatment with a B cell modulating or B cell depleting therapy such as, but not limited to, rituximab or other anti CD20 mAb (ocrelizumab, ofatumumab, obinutuzumab), belimumab, atacicept, tabalumab, epratuzumab and other experimental treatments
Use of systemic glucocorticoids at a dose higher than 10 mg prednisolone daily or equivalent, within 2 weeks prior to Screening or between screening and Day 1
Use of intraarticular hyaluronic acid injection within 28 days before the screening or between screening and Day 1.
Use of any drug that has not received regulatory approval for any indication within 4 weeks or a minimum of 5 half-lives, whichever is longer, prior to the Screening Visit or planned receipt of unauthorized drug or vaccine during the study.
History of prior allergic or anaphylactic reaction to rituximab therapy (or to any excipient contained in the study IMP)
Serious abnormal laboratory findings, specifically:
Intolerance or contraindications to administration of MTX therapy, i.v. glucocorticoids, or to any other component of the premedication
Major surgery (including joint surgery) within 8 weeks prior to Screening or planned surgery within 12 months after baseline
Recent vaccination with inactivated/non-live vaccine (<4 weeks prior to study intervention infusion on Day 1) or live vaccine (<6 weeks prior to study intervention infusion on Day 1) vaccine
Planned vaccination with live vaccine during the follow-up.
Chronic intake of narcotic analgesics (e.g. morphine, fentanyl, hydrocodone, oxycodone, codeine).
Participation in a clinical study during the 2 months prior to enrolment in the study (exemption - previously failed screening procedures in MabionCD20-003RA study).
Female patients breastfeeding, pregnant or planning of pregnancy within 12 months after the last infusion of the study intervention.
Blood donation or other blook loss of more than 500 ml within the last two months prior to Screening Visit.
Lack of peripheral venous access.
History of drug, alcohol or chemical abuse within 2 years prior to screening.
Primary purpose
Allocation
Interventional model
Masking
0 participants in 3 patient groups
Loading...
Central trial contact
Bartłomiej Czubek; Adam Tuszyner
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal